/**
* Copyright (C) 2001-2017 by RapidMiner and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapidminer.com
*
* This program is free software: you can redistribute it and/or modify it under the terms of the
* GNU Affero General Public License as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along with this program.
* If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.gui.new_plotter.configuration;
import com.rapidminer.gui.new_plotter.listener.DimensionConfigListener;
import com.rapidminer.gui.new_plotter.listener.events.DimensionConfigChangeEvent;
import java.lang.ref.WeakReference;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
/**
* @author Nils Woehler
*
*/
public abstract class AbstractDimensionConfig implements DimensionConfig {
private final PlotDimension dimension;
private boolean fireEvents = true;
private transient List<WeakReference<DimensionConfigListener>> listeners = new LinkedList<WeakReference<DimensionConfigListener>>();
public AbstractDimensionConfig(PlotDimension dimension) {
this.dimension = dimension;
}
@Override
public PlotDimension getDimension() {
return dimension;
}
@Override
public void addDimensionConfigListener(DimensionConfigListener l) {
listeners.add(new WeakReference<DimensionConfigListener>(l));
}
@Override
public void removeDimensionConfigListener(DimensionConfigListener l) {
Iterator<WeakReference<DimensionConfigListener>> it = listeners.iterator();
while (it.hasNext()) {
DimensionConfigListener listener = it.next().get();
if (listener == null || listener == l) {
it.remove();
}
}
}
protected void setFireEvents(boolean fireEvents) {
this.fireEvents = fireEvents;
}
protected boolean isFiringEvents() {
return this.fireEvents;
}
protected void fireDimensionConfigChanged(DimensionConfigChangeEvent e) {
if (isFiringEvents()) {
Iterator<WeakReference<DimensionConfigListener>> it = listeners.iterator();
while (it.hasNext()) {
DimensionConfigListener listener = it.next().get();
if (listener == null) {
it.remove();
} else {
listener.dimensionConfigChanged(e);
}
}
}
}
}